Draft arm



Match 3,, 195 9 1 PQSTEELE DRAFT ARM 5 Sheets-Sheet 1 File d Feb. 7,1955 INVENTORI VLRN-ON P STEELE ATTORNEY MarchB, 1959 v. P. STEELE DRAFTARM Filed Feb. 7, 1955 I 3 Sheets-Sheet 2 i mm mm n F- ON IIQVENTCRIVERNON F? STEELE ATTORNEY v. P. STEELE March 3,- 1959 DRAFT ARM I 5Sheets-Sheet 5 Filed Feb. '7, 1955 INVENTOR F? STEELE ew VERNON UnitedStates Patent DRAFT ARM Vernon P. Steele, Noroton, 'Conn., assignor toKenco Products Gorporation, Englewood, N. J.

Application February 7, 1955, Serial No. 486,576

6 Claims. (Cl. 299-150) This invention relates to a novel charged waterdispensing fixture comprising a draft arm mounting an integral valvecasing having a spindle-actuated, springbiased valve incorporatingdischarge means selectively operable to give a full flow or needledischarge. The invention also comprehends the use of a reciprocablesheath member encasing the valve, and a discharge nozzle detachablyseating an inserted, axially apertured cruciform flow-straightener, thenozzle being detachably subjoined to the sheath, to reciprocatetherewith, and the valve-actuating spindle having seated bearingengagement in and on the cruciform insert, whereby reciprocation of thesheath moves the valve to its unseated, open positions, against the biasof the valve-seating spring.

The present invention also provides such an improved draft arm with anintegral valve casing housing a normally closed, spring-biased valvemovable to either of two positions, to give either a full flow or needledischarge of charged liquid, and one in which the valve is demountableby means of a single tubular spanner Wrench engageable with a valve plugwhich serves as a journal for the valve stem and a valve seat, as wellas a multipartite discharge conduit for pressurized liquids.

It is, therefore, among the objects of the present invention to providea charged water dispensing draft arm mounting a wholly encased andshielded valve mechanism; a valve casing embodying a spring-biased valvemounted for reciprocation on a specially conformed and jonrnaledvalve-stem; a valve stem embodying peripheral flow duct-forming meansand subjoined axial discharge duct means selectively operable to givefull flow or needle discharge of charged water; a clear, plasticdischarge nozzle detachably forming the bottom portion of the shield,and a domed cylindrical upper shield portion, conjointly forming ashield reciprocable on and over the valve casing; a conformed actuatingmember in the dome of the shield having seated, bearing engagement onand with the top of the valve casing, and having an actuating handleextending through the dome; an axially aper tured, cruciform insert,desirably of clear plastic, adapted to be inserted and seated in thedischarge nozzle, and to receive the axial discharge duct inspring-biased, seated, bearing relation, whereby reciprocation of thevalveencasing shield reciprocates the valve stem and unseats the valve.

With these and other objects in view, which may be incident to myimprovements, the invention consists in the parts and combinations to behereinafter set forth and claimed, with the understanding that theseveral necessary elements, comprising my invention, may'be varied inconstruction, proporitons and arrangement, without departing from thespirit and scope of the appended. claims.

In order to make my invention more clearly understood, I have shown inthe accompanying drawings means for carrying the same'into practicaleffect, without limiting the improvements intheir useful applications tothe ice particular constructions, which for the purpose of ex plation,have been made the subject of illustration;

Figures 1 and 2 are, respectively, a side and front elevational views ofthe improved draft arm of the present invention;

Fig. 3 is a top plan view of the draft arm with the actuating handleremoved;

Fig. 4 is a fragmentary vertical section through the bottom of the draftarm and a supporting counter, showing the method of attachment;

Fig. 5 is a vertical axial section-through the upper portion of a draftarm and conjoined valve mechanism, the valve being closed;

Fig. 6 is a vertical axial section through the valve mechanism, taken online 6 6 of Fig. 5;

Fig. 7 is a view similar to Fig. 5, showing the valveunseating mechanismin the partial or free-flow position, with charged water dischargethrough the quadrantal apertures of the cruciform insert in thedischarge nozzle;

Fig. 8 is a view similar to Fig. 5, with the valveunseating mechanismfully retracted into the needle-flow position, with charged 'waterdischarge restricted to the axially apertured discharge nozzle;

Fig. 9 is a horizontal cross-section taken on line 99 of Fig. 5, andshowing the annular array of discharge ducts; and

Fig. 10 is a cross-section taken on line 10-'10' of Fig. 5, showing thecruciform insert.

Turning now to Figs. 14 of the drawings, the novel draft armwill be seento comprise a hollow goose-neck standard 10 having a flat, horizontalbase 11, and a vertically disposed curvilinear upper terminal surface12, adapted to serve as a splash guard. The base 11 is apertured toreceive a threaded stub pipe 13' grazed or otherwise fixedly securedthereto', the pipe being adapted to fit in a suitable opening, notshown, in a soda counter or bar. A lock nut 14 is threadedly engagedwith pipe 13 and serves to lock the draft arm in place on a servingcounter. The bottom of pipe 13 is inwardly flanged to define an axialaperture 15, in which is hermetically fitted the bottom end of adispensing pipe 16 which is mounted in the interior of the standard 10,as shown. The lower end of pipe 13 may be threadedly engaged with awater pipe or carbonated water supply, in the usual manner. As shown inFigs. 5 and 8, the upper end of pipe 16 is peened over and sweated intothe rear end of threaded tubulature 17 having an extension 18 projectingbeyond the curvilinear face 12 of the standard 10. The member 17 isengaged in tight fit in the terminal end of goose-neck 10, and isfixedly secured therein by 'silver solder, as shown at 19.

The outer end 18 of tubulature 17 is threadedly en gaged in the wall ofvalve casing 20, as shown at 17, and is fixedly secured therein, as bysilver solder'18'. The valve casing (Figs. 5-9) comprises an inverted,cylin drical member, having a top or closed end 21, a cylindrical wall22, an open end 23, and a stepped, inner wall surface comprised of amain body section 24, a threaded central section 25, and an internallystepped terminal section 26, defining a shoulder 27 with the centralseciton. The body section 24 receives the open end 18 of tubulature 17in free fluid communication, and forms a valve chamber 28 with theclosed end 21 and the inner face 33, of annular valve plug or lock nut30. The member 30, is centrally apertured, as shown at 31, and isprovided with aflanged outer end 32, a vertically offset, flat innerface 33, and a threaded body section 34. The flanged end 32 and hasbearing engagement with gasket 35 mounted between it and shoulder 27 ofthe valve casing 20. The threaded body section 34 is engaged with thethreaded section 25 of the valve casing, and is screwed up in place by asuitable tubular Wrench having lugs engageable in diametrically.opposedsockets 36 in the frustro-conical outer face 37 of flange 32.

The inner surface 33 of lock nut 30, defines a fixed valve chamber 28with the wall and closed end of the valve casing 20.

It-will be seen that the valve chamber is integral with p the deliverypipe 16 and the goose-neck 10, being rigidly supported on and by thelatter.

The movable parts of the valve mechanism (Figs. +9), designatedgenerally by the numeral 40, comprise an inverted, cup-shaped valve41'seating an annular gasket 42, and a flanged bearing surface 43,spring-biased into valve-sealing, bearing engagement with oflset valveseat 33 oflock nut 30, by compression spring 44, seated in valve chamber28, and having bearing engagement with both flange 43 and top 21 of thevalve casing 20. The interior of valve v41 is threaded, as shown at 45to receive the threaded upper end 51 of valve stem 50. L

- The valve stem 50 is polygonal in crosssection, a hexagonal shapebeing the preferred form, as shown in Fig. 9. The valve stem 50 hasclose sliding clearance with the inner wall or cylindrical surface ofaxial-aperture 31 .of the combination valve-plug, valve-stem journal,and annular lock nut 30, and defines sixperipheral axial ductstherewith. The peripheral ducts extend the full length of the valve-stemand establish fluid communication between valve chamber 28 and thedischarge nozzle, as will appear more fully hereinafter. For ease ofidentification, the peripheral faces of the valve stem are designated53a, 53b, 53c, 53d, 53e, and 53f. The threaded upper end or spindle 51of the valve stem defines a shoulder 52 at the top of the body 53 of thestern, which shoulder has l'ocking bearing engagement with gasket 42 ofthe valve 40.

The valve stem is provided further with an elongated, integral,subjoined spindle 54, defining a bearing shoulder 55 with the body 53 ofthe stem. The spindle is threaded in its upper portion, as indicated at56, leaving an unthreaded lower portion 57. Spindle 54 is provided withan axial duct 58, which extends a slight distance up into the body 53 ofthe valve stem. A radial duct 59 (Figs. 7 and 9), couples the lowermostpart of peripheral face 53a of the valve stem with the axial duct 58,for a purpose to be described more in detail hereinafter. While oneradial duct 59 has been shown, it will be appreciated that a pluralityof equiangularly disposed radial ducts may be provided in fluidcommunication with axial discharge duct 58.

Because of the threaded top and bottom spindle portions of valve stem50, the valve 40 and the lock nut 60 can be adjusted to give any desiredreciprocating travel to the valve stem. Additionally, when the gaskets42 and 64 wear down, their carrier members 40 and 60 can be taken up ontheir respective spindles to give the desired gas-tight sealing relationwith the apposed parts of the valve plug or journal 30.

The flanged lock nut 60 comprises an axially apertured, cylindrical bodyportion61, internally threaded to engage the threads 56 of spindle 54. Aflanged, cupshaped top section 62, having a collar 63, serves to receive and seatan annular gasket 64, having a flat top surface 65, and atapered spheriform transition section 66, adapted for sealing bearingengagement with the conical bearing surface 37 of the valve plug 30. Thegasket 64 is clamped in position against the bottom shoulder 55 of thevalve stem, by threading member 60 up on threaded section 56 of thelower spindle. The basket 64 is adapted to seal off the bottom outletsof peripheral ducts 53a-53f, inclusive, when the valve stem isreciprocated to its uppermost position, thereby shunting the flow ofcharged'water from the free flow discharge nozzle to the axial dischargeduct 58 of the needle spray, through radial connecting duct 59 (Figs. 7and 9). It will be seen (Figs. 5,

7, and 8) that the peripheral ducts 53a-53f are open to the dischargenozzle, both in the closed position of valve 40 (Fig. 5), and itsinitial, unseated position (Fig. 7) In this latter position free flow ofcharged water into the discharge nozzle is assured. When the valve 40 isfully unseated (Fig. 8), the lower gasket 64 is opposed to conicalbearing surface 37 of the valve plug 30, and the discharge nozzle issealed off from the charged water flow, the flow being diverted throughthe spray nozzle, as above noted.

The provision of multiple peripheral ducts 53a-53f, serving as conduitsfor. pressurized, charged water between the valve chamber and thedischarge nozzle, has a number of important advantages. One of theseadvantages is the elimination of burbling and sputtering of thedischarging fluid by causing it to flow in a plurality of separate,elongated, restricted ducts, wherein the normal swirling tendency of thegassy liquid is eliminated because of imposed space limitations, and aplurality. of rectilinearly flowing streams are simultaneouslydischarged into the upper, quiescent zone of the discharge nozzle, whereoversized gas bubbles disintegrate, thereby eliminating gas lock. Therectilinearly discharging streams coalesce in the said quiescent zone toform a pool of charged water which flows smoothly out of the nozzle. Thenozzle forms the lowermost member of a reciprocable, valve-encasingsheath, and it will now be described in particular relation to the valvemechanism and its cooperation therewith.

The nozzle is preferably made of clear plastic and is comprised of anupper cylindrical body portion 71, and a convergent discharge end 72,having an axial discharge aperture 73. The inner surface 74, of thecylindrical body portion, is adapted for sliding bearing engagement onand over the bottom end 23 of the valve casing 20,

and forms a discharge chamber with the bottom of the valve plug. Theupper portion of the outside of the nozzle is cut back to form athreaded'end 76 and a shoulder 77. The inner surface 78 of theconvergent discharge end 72, is conical and receives and seats ademountable flow divider 80.

The insert 80 (Figs. 5, 6, 7, 8, and 10), like the nozzle 70, ispreferably of clear plastic, and is comprised of an axially apertured,cylindrical core or body section 81, apertured, as indicated at 82, andprovided with integral radial arms or vanes, designated generally by thenumeral 83 The top surface 84 of the core section, is flat, and isadapted to provide an annular bearing surface for the bottom 62 ofspring-biased lock nut 60. The outer edges 85 of the vanes 83 areconformed to the inner, conical surface 78 of the nozzle 70, and areadapted to be seated therein, the vanes, as shown (Fig. 10), forming acruciform flow divider defining quadrantal discharge outlets 86therewith. The bottom surfaces 87, ofthe vanes 83, are flush with thebottom of nozzle 70 (Fig. 7). As noted, the cruciform insert 80 isspringbiased into bearing engagement with the nozzle 70 by the lock nut60, which is functionally integral with the valve stem 50. The dischargetip of the needle spray 54 is housed in the axial aperture 82 of member80, and is completely protected from contact with outside structures ordevices. 7

The nozzle 70 and its cruciform insert serve to reciprocate the valvestem 50, against the bias of compression spring 43, and are controlled,in this action, by a novel nozzle reciprocating mechanism, now to bedescribed.

The nozzle reciprocating mechanism comprises a top sheath member 90 anda rocker handle 100. The member 90 is comprised of a cylindrical bodyportion 91 with an integral hemispherical top 92. The inside of the openbottom is cut back to form an internal shoulder 93, and the wall sectionis threaded at 94 for threaded engage ment with the threaded upper end76, of the nozzle 70. The wall of the sheath and the cooperating portionof the nozzle are radially slotted, as shown at 95, to re? ceive tubularextension 18 of the discharge pipe 16, and permit the sheath toreciprocate freely thereover. It is to be noted that tubulature 18 isradially disposed with respect to the valve casing and the encompassingsheath. The domed top 92 of the sheath is slotted at 96, in the samevertical plane as the side slot 95, to receive actuating lever 97,having a threaded. end 98. The valve actuating handle 100 is threadedlyand detachably engaged on and over threadedend 98 of the actuatinglever. Desirably the bottom 101, of the handle, is conformed to the topsurface 92 of the sheath 90. The inner end 99 of lever 97 is threadedlyengageed in a hemispherical rocker member 102, having a curviform topsurface 103 and a flat bottom surface 104. The surface 103 is nested inand conformed to the inner surface of the curviform top 92 of the sheath90, while the flat bottom surface 104 has bearing engagement with theflat, closed end 21 of fixed valve casing 20.

While the actuating lever 97 has been described as having threaded endsfor engagement with the actuating handle 100, and rocker member 102,respectively, it will be appreciated that the end 98 of lever 97 may becast, molded or otherwise embedded in the actuating handle, andaccordingly, only the inner end 99 need be designed for threadedengagement with the rocker member.

The assembly of the valve is simple and is effected in the followingmanner: The biasing spring 43 is inserted into the valve chamber 28, andthe valve plug 30, with the contained spindle and valve elements, isthreaded into the valve casing. For this purpose a special socket wrenchis used. With the valve plug seated, the biasing spring urges the valve40 into valve-closing position. The rocker member 102 is then fittedinto the curved end portion 92 of sheath 90, and thereafterwardsactuating lever 97, associated with the handle member 100, is threadedinto the rocker member, thus locking said member in place in the sheath.It will be noted that the slot 96 is twice as long, in one directionfrom the vertical axis of lever 97, as it is in the opposite direction,and accordingly, by means of this construction, the valve can be openedhalf way, for full flow discharge, by moving the handle in eitherdirection, and fully opened by moving it to the full extent in theopposite direction. As noted hereinabove, full flow is secured when theactuating handle is moved to unseat the valve, without closing off theoutlets of discharge ducts 53a-53f. When the handle is moved to its fullextent rearwardly (Fig. 8), the ducts are sealed off and outflow isdiverted through axial discharge duct 58.

With the sheath elements interlocked, the sheath is fitted over thevalve casing, the slot 96 being passed over the extension 18 of thedischarge pipe 16. Thereafter, the clear plastic nozzle 70 is fittedover the axially apertured needle spray tip 54 and threadedup into thesheath. In the assembled position the tops of vanes 83 of the cruciformnozzle insert 80 should have bearing engagement with the bottom surface62 of lock'nut 60.

When the sheathed valve has been assembled, the pressure liquid supplyis opened, and the valve is ready for use. Upon moving the actuatinghandle either forward or backward, the rocker member is tilted aboutitsedge as a fulcrum, the edge being fulcrumed on the flat upper surface ofclosed end 21 of fixed valve casing 20. Because of the curviform uppersurface of the rocker member, the circular'edge 105 of the latter willbe forced inwardly on the valve casing, and the sheath will be lifted,carrying the nozzle with it, and thereby lifting the spindle against thebiasing action of the compression spring and unseating the valve.

With the valve partially or wholly open, the pressurized liquid in thevalve chamber 28 is forced, in restricted, non-swirling, paths, throughthe now open ducts 53a-53f, and is diverted in cone-shaped pattern byreason of the cooperating tops on the valve plug 30, and curviformwasher 64. The liquid is thus forced out laterally and radially into thechamber 75 formed by the interior of the nozzle, and thence out of thenozzle, in parallel, rectilinear, non-splashing streams, through the.quadrantal apertures 86 formed by and between the radial vanes 83. Theuniform flow through the nozzle is characterized by freedom fromburbling and swirling, and is the result of the successive flowstraightening steps to which the issuing pressurized liquid issubjected. With unrestricted, nonlinear flow of pressurized liquids,swirling and burbling is the usual result. Where carbonated or aeratedliquids are hand-led, under pressure, smooth, uniform discharge throughan ordinary discharge nozzle is a matter of happenstance, and gas lockin a nozzle is an ordinary occurrence, resulting in a sputtering,scattering discharge or spraying of'the aerated liquid, with loss ofcarbonation.

The use of the improved device herein insures the uniform,non-spattering discharge of pressurized liquids, with the retention offull carbonation or aeration, as the case may be. The valve chamber andthe nozzle chamber serve to retain wild gases, and insure a uniformdischarge of gasified liquid from one pressure stage to the next lowerstage and final delivery.

While I have shown and described the preferred embodiment of myinvention, I wish it to be understood that I do not confine myself tothe precise details of construction herein set forth by way ofillustration, as it is apparent that many changes and variations may bemadetherein, by those skilled in the art, without departing from thespirit of the invention or exceeding the scope of the appended claims.

What is claimed:

1. A dispensing valve for charged liquids, including, in combination, avalve chamber mounting a springbiased valve; means for unseating thevalve; a valve stem reciprocally mounted in a tubular valve plug havinga valve-seating top surface and a frusto-conical bottom surface, thestem forming a plurality of parallel discharge duets with the plug; dualdischarge means adapted to be selectively placed in fluid communicationwith the valve chamber by the valve unseating means; a reciprocablesheath member encasing the valve chamber and va1ve-unseating means; adischarge nozzle embodied in the sheath; a combination flow straightenerand valve unseating means support seated in the nozzle; and a sheathreciprocating member in the top of the sheath adapted for pivotedbearing engagement with the valve chamber to lift the sheath.

2. A two-position lift-valve adapted for the selective delivery ofeither full-flow or needle-spray of charged water, comprising a draftarm coupled to a supply of charged water; a valve casing coupled to thedraft arm; a valve in the casing; a multiple duct-forming valve stemreciprocably secured in the valve casing; said stem being reciprocallymounted in a tubular valve plug having a valve-seating top surface and afrusto-conical bottom surface, the stem forming a plurality of paralleldischarge ducts with the plug; a needle spray duct subjoined to thevalve stem and in fluid communication with at least one of the multipleducts; a discharge nozzle reeiprocably mounted on and over the bottom ofvalve casing; supporting means in the nozzle for the spray duct; asheath reciprocably mounted on and over the top of the valve casing andoperatively joined to the discharge nozzle; and means in the sheath forlifting same whereby to lift the valve stem'and open the valve.

3. Valverrleehan'ism for use in dispensing charged liquids, including,in combination, an inverted cup-shaped valve casing; a lateral chargedliquid inlet pipe integral with the valve casing and embouched in themiddle of the wall thereof; a centrally apertured plug threadedlyengaged in the valve casing and defining a valve chamber against theflanged bottom of the valve and top of the valve chamber, whereby thevalve is normally springbiased into chamber outlet-sealing position; apolygonal valve stem slidingly fitted for reciprocation in the plugaperture and forming an annular array of a plurality of mutuallyparallel ducts conjointly serving as the discharge outlet for the valvechamber; a shouldered top spindle section integral with the valve stemand adapted for threaded engagement in the valve with conjoint lockingbearing engagement with the gasket in the valve; an axially apertured,shouldered, elongated hollow spindle section integral with the bottom ofthe valve stem, and having at least one horizontal radial inlet duct atthe bottom'of the valve stem in fluid communication with the surface ofthe stem and the axial aperture of the spindle; a frusto-conical dishedbottomin the valve plug in free fluid communication with and forming anopen, flaring bottom for the parallel discharge ducts, the radial inletduct of the valve stem opening into the apex of the conical bottom whenthe valve is closed; a dished, flanged lock-nut mounting a gasket,threadedly secured on and over the upper section of the hollow spindle,and forcing the gasket into locked, bearing engagement withthevshouldered bottom, said gasket being vertically reciprocable intosealing, bearing engagement with the conical bottom of the valve plug,whereby the bottoms of the annular array of discharge ducts are sealedoff, and

' the radial inlet to the hollow spindle forms the sole discharge outletof the valve mechanism.

4. An actuating device for use with valve mechanisms of the typeaccording to claim 3, including, in combination, a centrally apertured,cruciform, inverted frustroconical stream divider receiving thedischarge end of the hollow spindle, and having bearing engagement withthe bottom of the spindle-engaging lock-nut; a discharge nozzle having acylindrical body section and a frustroconical discharge sectionreceiving the cruciform stream divider, the inner surface of thecylindrical body having reciprocable sliding bearing engagement with thelower portion of the valve casing; a dome-topped cylindrical sheathmember fitted for sliding bearing engagement with the upper portion ofthe valve casing, said sheath member being detachably coupled to thedischarge nozzle, and the assembly having a vertical slot receiving thevalve entrant pipe, the actuator device being normally springbiased intovalve-closed position by the stream divider functioning as an element ofthe valve stem; and means for reciprocating the actuating device intoeither of two valve-opening positions, comprising a rocker memberconformed to the top of the valve casing and the superjacent domesection of the sheath, the dome being slotted to receive an upstandingrocker member, whereby when the said member is moved to the firstactuating position, the sheath is partially vertically reciprocated,raising the valve stem to valve-unseating position with the dischargeducts opened into the discharge nozzle and the cruciform discharge tip,and on continued movement to the second actuating position, the valvestem is raised to annular dischargednct-cl'osing position, wherebydischarge from the valve is restricted to the axial outlet of thespindle.

5. An improved dispensing valve for charged liquids, comprising, incombination, a valve casing mounting a spring-biased valve; a valve stemreciprocably mounted in .8 a tubular valve plug having a valve-seatingtop surface and a frustro-conical bottom surface, the stem forming aplurality of parallel discharge duets with the plug; an axial dischargeduct in the bottom of the valve stem having a radial entrant duct influid communication with the apex of the frustro-conical bottom of theplug; a valve threadedly mounted on the top of the valve stem andspring-biased into duct-closing position; a gasketed block-nut securedon the bottom of the valve stem below the radial entrant duct, saidgasket adapted to seal off the parallel ducts, whereby outflow isrestricted to the axial discharge duct; and actuating means for movingthe valve stem into either of two valve-unseatingposi-- tions, saidmeans embodying a cylindrical sheath reciprocably mounted on and overthe valve casing, the sheath having a discharge nozzle seating acruciform stream divider, the stream divider being axially apertured toreceive the axial discharge duct and seating the springbiased valvestem, whereby when the sheath is partially reciprocated, the dividerlifts the valve stem to unseat the valve and permit the discharge ofcharged fluid through the parallel ducts into and through the dischargenozzle, and when the sheath is fully reciprocated, the

bottom of the parallel ducts is sealed off, and outflow is concentratedin the axial discharge duct.

6. Valve. mechanism for dispensing charged liquids, comprising aninverted valve chamber fixedly coupled to a delivery tube for chargedliquid; a detachable centrally apertured valve seat in the chamber; aspring-biased valve plate normally seated on and closing the valve seat;a polygonal valve stem reciprocable in the said central aperture, andforming a plurality of parallel discharge duets with the valve seat;said stern having a depending hollow spindle in fluid communication withthe lower part of at least one face of the valve stem; a two-part sheathreciprocably fitted on and. over the valve and spindle, the lower partof the sheath having a frustroconical discharge opening;flow-straightening means seated in discharge opening, and movable withthe sheath, said means being apertured to receive and seat the spindle,and reciprocable to move the spindle and valve disk against the bias ofthe valve-seating spring, whereby the valve chamber is placed in fluidcommunication with the central aperture and the discharge opening; slotmeans in said sheath receiving the delivery tube; rocker arm meansseated on the top of the valve chamber and conformed to the upper insidesurface of the sheath; a slot in the top of the sheath; and an actuatinglever integral with the rocker arm, whereby when the lever is moved, thearm is pivoted, thereby lifting the sheath and unseat ing the valve.

References Cited in the file of this patent UNITED STATES PATENTS 93,852Baird Aug. 17, 1869 231,470 Bestwick Aug. 24, 1880 245,168 Hopkins Aug.2, 1881 696,329 Green Mar. 25, 1902 1,167,959 Wiechert Jan. 11, 19162,627,439 Wornall Feb. 3, 1953 FOREIGN PATENTS 14,014 Great Britain 1915

